Grand piano



FIG. 1 is a front, perspective view of a grand piano, with the cover in a raised position, showing our new design;

FIG. 2 is a front, right elevational view thereof;

FIG. 3 is a left, front elevational view thereof;

FIG. 4 is a rear, right elevational view thereof;

FIG. 5 is a rear, left elevational view thereof; and,

FIG. 6 is a right, front elevational view thereof. 

CLAIM The ornamental design for a grand piano, substantially as shown and described. 